A cinema remake of the classic sitcom Dad's Army (1968). The Walmington-on-Sea Home Guard platoon deal with a visiting female journalist and a German spy as World War II draws to its conclusion.

Catherine Zeta-Jonesas Rose Winters
Bill Nighyas Sergeant Wilson
Michael Gambonas Private Godfrey
Toby Jonesas Captain Mainwaring
Mark Gatissas Colonel Theakes
Sarah Lancashireas Mrs. Pike
Tom Courtenayas Lance Corporal Jones
Blake Harrisonas Private Pike
Alison Steadmanas Mrs. Fox
Daniel Maysas Private Walker